B3311331313231311331322331333132313331322331323133313311223323132322321   >>    B331133131323131133132233133313231333132233132313331331122332313232232   <<    B3311331313231311331322331333132313331322331323133313311223323132322323   >>      B3311331313231311331322331333132313331322331323133313311223323132322322   >>